[Cob] simple, light roofs

[Rob Hayes]

Here's an interesting view below of a likely roof for cob structures called TSC 
- Thin Shell Concrete treads lightly with your carbon footprint and offers and 
effective opportunity to collect water too.   Protecting your strawbale and cob 
walls might be without some of the typical compression complications  as several 
simple vertical posts can suffice to provide the supportive structure.

There's a few other articles of interest to earthen builders and cobbers too at 
this below site.
Including:  Used Shipping Pallets for shelter,  and

Hand-Build an Earth Sheltered House For 
$5,000http://greenbuildingelements.com/2008/12/01/hand-build-an-earth-sheltered-house-for-5000/

see the article excerpted below at:

http://greenbuildingelements.com/2010/12/06/new-paradigm-for-compressed-earth-blocks-and-roofs/


"...The TSC roof, called a thin shell composite hyperbolic paraboloid, or TSC 
Hypar – a roof system designed by habitat pioneer, George Nez. He originally 
developed the roof for emergency resettlements in impoverished areas of the 
world as a low-cost shelter alternative to plastic structures currently found in 
many resettlement programs.

TSC Global proclaims the building methodology of the Nez roof has the potential 
for revolutionizing roofing and construction in the most impoverished and remote 
parts of the globe. The hypar roof has been used in many African countries, 
including Kenya, Rwanda, Tanzania, Uganda, and Sudan.

Wells points out there are many options for wall infill, but this may be one of 
the most cost-effective solutions. “TSC Global believes that..."
"...If clay is available at a site and with attention to quality, this provides 
a very inexpensive and strong wall system.” 

more at:
http://tscglobal.org/
http://tscglobal.org/about.cfm
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